User Manual

CS8427

DS477F5 41

TXP

TXN

Differential Line Driver (Output) - Drivers transmit AES3 data and are pulled low while the

CS8427 is in the reset state.

AD1/CDIN 27 Address Bit 1 (I²C) / Serial Control Data in (SPI) (Input) - In I²C mode, AD1 is a chip

address pin. In SPI mode, CDIN is the input data line for the control port interface

SCL/CCLK 28 Control Port Clock (Input) - Serial control interface clock and is used to clock control data

bits into and out of the CS8427. In I²C mode, SCL requires an external pull-up resistor to

VL+